File with expansible pockets



April 8, 1924. 1,489,730

t G. H. BAKER FILE WITH EXPANSIBLE I OCK ETS Filed June so. 1922 2Sfieets -Sheet 1 c 7 9 WWWW VWWWW M i E F I s- 6? a F i T Q0 5 i l f I;'mNMMMAW MMMMMM mlnesses 1hr fll'or WWW P atented Apr. 8, 1924.

Mrs srrs GEORGE HAROLD BAKER, OF LONDON, ENGLAND.

FILE WITH EXPANSIBLE POCKE'IS.

Application filed June 30, 1922.

To all whom it may concern.

Be it known that I, GEORGE HAROLD BAKER, of London, England, a subjectof the King of Great Britain and Ireland, have 8 invented certain newand useful Improvements in or Relating to Files with Expansible Pockets,of which the following is a specification.

Thisinvention relates to index files with 1 expansible pockets and hasfor its object to provide an improved index file of this type.

In my improved index file a series of combined expansible pockets isable to expand to the fullest possible extent on all sides of thepockets and in a general direction at right angles to the surface of theend pocket of the series when in its contracted or empty and closedposition, in contradistinction to the known expanding files which openout after the manner of a fan in which the lower sides of the pocketsare naturally unable to expand to the same extent as the upper sides;and further in my improved index file I completely enclose the saidexpanding pockets in a box having rigid walls which maintain arectangular form when closed or expanded in contradistinction to theknown horizontally expanding files which have been partially enclosedwith flexible 80 covers, which bulge when filled with papers and in theshut position and which leave parts of the expanding pocketsunprotected.

Files made in accordance with this invention are simple and cheap tomanufacture, and are of a convenient size and light weight, whichenables them to be kept at hand on a book-shelf and to be readily pickedup; and further they are opened with a minimum of trouble, as on therelease of a single catch the front is freed and the hinged side fallsopen.

One form of my invention is illustrated in the accompanying drawings inwhich Fig. 1 is an end view of the file in the ex tended position;

Fig. 2 is a plan of the file in the extended position;

Fig. 3 is a plan showing the box open and the pockets contracted;

Fig. 4c is an end view of the file in the closed position;

Fig. 5 is a fragmentary end view on a large scale.

Referring to the drawings the box is made in the form of a book andcomprises a back Serial No. 572,068.

a, side 6 and ends 0 c which are all rigidly secured to each other, aside 9 hinged to the back at h and a front 70 hinged to the side Z) atm.

Expanding pockets are secured to the side b of the box, and compriseside leaves p, expandible folds g Q at the ends and expandible folds 1'at the back. 8 is a catch on the front 76 of the box adapted to engage arecess t in the hinged side 9.

The files may be made of any suitable material; for instance theexpanding pockets may be made of good quality cardboard with an extrathick board forming the side leaf at the free end of the series ofpockets. The end folds of the pockets may be provided with a strip ofcloth along their top edges in order to prevent their being torn. Thebox may be made of cardboard or wood covered with paper or cloth, or itmay be made of any other suitable material.

Referring to Fig. 5, which shows a preferred method of hinging the frontk to the box, it is a part of the side 7) which projects beyond the ends0 c to an extent equal to the thickness of the front 72.

Two strips of cloth are secured to the top 70 and side I); both stripsbeing secured at w and ac to the top, and one being secured at 3/ to theside Z) and the other at z and 2 to the side 6, thereby forming a hingeat 3. By this means there is no tendency for the cloth to be drawn awayat the hinge line from the side and front.

What I claim and desire to secure by Letters Patent is r A filecomprising a box having an appearance and dimensions similar to those ofa book, said box comprising a back which is adapted to form the basewhen the box is being opened, two ends and one side rigidly secured tothe back, a front hinged to the fixed side, a side hinged to the back,and a securing device for connecting at will the free edge of the hingedside to the free edge of the front; and a series of pockets in which allthe edges. of each pocket are adapted to expand an approximately equalamount, said pockets being secured at one end to the fixed side of thebox, being adapted to be completely enclosed by the box when closed, andto rest on the back and the hinged side when the file is expanded.

GEORGE HAROLD BAKER.

